linux-kernel - Re: [PATCH] bluetooth: fix potential gfp

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Message-Id: <BFCF660F-B919-47EB-874D-5568E41927C6@holtmann.org>
Date:   Fri, 7 May 2021 18:07:50 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     Johan Hovold <johan@...nel.org>
Cc:     Pavel Skripkin <paskripkin@...il.com>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        Bluetooth Kernel Mailing List 
        <linux-bluetooth@...r.kernel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bluetooth: fix potential gfp

Hi Johan,

>>>>> In qca_power_shutdown() qcadev local variable is
>>>>> initialized by hu->serdev.dev private data, but
>>>>> hu->serdev can be NULL and there is a check for it.
>>>>> 
>>>>> Since, qcadev is not used before
>>>>> 
>>>>> 	if (!hu->serdev)
>>>>> 		return;
>>>>> 
>>>>> we can move its initialization after this "if" to
>>>>> prevent gfp.
>>>>> 
>>>>> Signed-off-by: Pavel Skripkin <paskripkin@...il.com>
>>>>> ---
>>>>> drivers/bluetooth/hci_qca.c | 4 ++--
>>>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>> 
>>>> patch has been applied to bluetooth-next tree.
>>> 
>>> Why did you pick the v1 when it is clear from thread that a v2 has been
>>> posted?
>> 
>> because I only saw that email after I applied the patch and the v2 is
>> nowhere in sight as it seems. If it shows up, I replace this one then.
> 
> Here it is
> 
> 	https://lore.kernel.org/lkml/20210503100605.5223-1-paskripkin@gmail.com/

seems to have missed my inbox. Fixed now.

Regards

Marcel